San Esters Corporation: iso-Butyl Methacrylate (IBMA)
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PropertiesSpecificationsTypical Properties
Color when shipped (APHA)20 max.5 max.
Specific gravity (20ºC/4ºC)0.884~0.8900.887
Acidity (As Methacrlic acid) %0.005 max.0.001
Purity % - PSDBn/an/a
Purity % - Brominationn/an/a
Purity % - Gaschromatography99.0 min.99.7
Purity % - Othersn/an/a
Water when shipped (By Karl Fisher) %0.1 max.0.01
Inhibitors - HQ ppm100
Inhibitors - MEHQ ppm25,100
Inhibitors - IA ppmn/a
Package & Net weight180kg Iron drum
Formula weight142.20
Refractive index (n²°D1.4216
Viscosity (mPs•s,20ºC)0.88
Freezing point ºC-33
Specifuc heat J/(g ºC)1.88
Heat of polymerization kJ/mol59.9
Boiling point ºC/hPa155/1013, 107/267, 87/133
Solubility % 20ºC - Water in0.30
Solubility % 20ºC - In water0.04
Flash point ºC45
Toxicity (Acute oral LD50,rats,mg/kg)11,900
Tg of Polymer48